How severe is CVE-2026-5046?

CVE-2026-5046 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-5046 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5046?

CVE-2026-5046 affects Tenda Fh1201 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5046?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-5046 have an EU (EUVD) identifier?

Yes. CVE-2026-5046 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17033.

When was CVE-2026-5046 published?

CVE-2026-5046 was published on 2026-03-29 and last updated on 2026-06-17.

CVE-2026-5046

CVE-2026-5046 is a high-severity vulnerability in Tenda Fh1201 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17033
Weakness: CWE-119
Affected product: Tenda Fh1201 Firmware
Published: 2026-03-29
Last modified: 2026-06-17

Description

A flaw has been found in Tenda FH1201 1.2.0.14(408). Affected is the function formWrlExtraSet of the file /goform/WrlExtraSet of the component Parameter Handler. Executing a manipulation of the argument GO can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.

Frequently asked questions

What is CVE-2026-5046?: A flaw has been found in Tenda FH1201 1.2.0.14(408). Affected is the function formWrlExtraSet of the file /goform/WrlExtraSet of the component Parameter Handler. Executing a manipulation of the argument GO can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.
How severe is CVE-2026-5046?: CVE-2026-5046 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-5046 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5046?: CVE-2026-5046 affects Tenda Fh1201 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5046?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-5046 have an EU (EUVD) identifier?: Yes. CVE-2026-5046 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17033.
When was CVE-2026-5046 published?: CVE-2026-5046 was published on 2026-03-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:fh1201_firmware:1.2.0.14\(408\):*:*:*:*:*:*:*

More vulnerabilities in Tenda Fh1201 Firmware

CVE-2024-42947 — Critical (CVSS 9.8): An issue in the handler function in /goform/telnet of Tenda FH1201 v1.2.0.14 (408) allows attackers to execute…
CVE-2026-5045 — High (CVSS 8.8): A vulnerability was detected in Tenda FH1201 1.2.0.14(408). This impacts the function WrlclientSet of the file…
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CVE-2025-7551 — High (CVSS 8.8): A vulnerability was found in Tenda FH1201 1.2.0.14(408). It has been declared as critical. Affected by this…
CVE-2025-7550 — High (CVSS 8.8): A vulnerability was found in Tenda FH1201 1.2.0.14(408). It has been classified as critical. Affected is the function…

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